![A staff holds a diamond and pearl tiara passed down through generations of the Italian royal family during a preview at Sotheby's before their auction in Geneva, Switzerland, May 6, 2021. REUTERS/Denis A staff holds a diamond and pearl tiara passed down through generations of the Italian royal family during a preview at Sotheby's before their auction in Geneva, Switzerland, May 6, 2021. REUTERS/Denis](https://c8.alamy.com/comp/2FM668X/a-staff-holds-a-diamond-and-pearl-tiara-passed-down-through-generations-of-the-italian-royal-family-during-a-preview-at-sothebys-before-their-auction-in-geneva-switzerland-may-6-2021-reutersdenis-balibouse-2FM668X.jpg)
A staff holds a diamond and pearl tiara passed down through generations of the Italian royal family during a preview at Sotheby's before their auction in Geneva, Switzerland, May 6, 2021. REUTERS/Denis
![Diamond tiara with pink stones. Illustration crown tiara women with glittering precious stones. | CanStock Diamond tiara with pink stones. Illustration crown tiara women with glittering precious stones. | CanStock](https://cdn.w600.comps.canstockphoto.com/diamond-tiara-with-pink-stones-clipart-vector_csp36823153.jpg)
Diamond tiara with pink stones. Illustration crown tiara women with glittering precious stones. | CanStock
![Christie's member of staff Carine Decroi displays an antique diamond tiara (circa 1890) by Faberge during an auction preview in Geneva May 11, 2007. This jewel, from the collection of Princess Maria Christie's member of staff Carine Decroi displays an antique diamond tiara (circa 1890) by Faberge during an auction preview in Geneva May 11, 2007. This jewel, from the collection of Princess Maria](https://c8.alamy.com/comp/2D1KCJ6/christies-member-of-staff-carine-decroi-displays-an-antique-diamond-tiara-circa-1890-by-faberge-during-an-auction-preview-in-geneva-may-11-2007-this-jewel-from-the-collection-of-princess-maria-gabriella-di-savoia-will-be-sold-during-a-sale-in-geneva-may-13-and-is-expected-to-fetch-between-800000-to-1200000-reutersdenis-balibouse-switzerland-2D1KCJ6.jpg)
Christie's member of staff Carine Decroi displays an antique diamond tiara (circa 1890) by Faberge during an auction preview in Geneva May 11, 2007. This jewel, from the collection of Princess Maria
![Sothebys Employee Displays Diamond Tiara Early 19th Editorial Stock Photo - Stock Image | Shutterstock Sothebys Employee Displays Diamond Tiara Early 19th Editorial Stock Photo - Stock Image | Shutterstock](https://editorial01.shutterstock.com/wm-preview-1500/8125103k/eb556c14/switzerland-sothebys-auction-may-2008-shutterstock-editorial-8125103k.jpg)
Sothebys Employee Displays Diamond Tiara Early 19th Editorial Stock Photo - Stock Image | Shutterstock
![A staff holds a diamond and pearl tiara passed down through generations of the Italian royal family during a preview at Sotheby's before their auction in Geneva, Switzerland, May 6, 2021. REUTERS/Denis A staff holds a diamond and pearl tiara passed down through generations of the Italian royal family during a preview at Sotheby's before their auction in Geneva, Switzerland, May 6, 2021. REUTERS/Denis](https://c8.alamy.com/comp/2FM663E/a-staff-holds-a-diamond-and-pearl-tiara-passed-down-through-generations-of-the-italian-royal-family-during-a-preview-at-sothebys-before-their-auction-in-geneva-switzerland-may-6-2021-reutersdenis-balibouse-2FM663E.jpg)
A staff holds a diamond and pearl tiara passed down through generations of the Italian royal family during a preview at Sotheby's before their auction in Geneva, Switzerland, May 6, 2021. REUTERS/Denis
![An employee of Sotheby's auctioneers displays the Murat Tiara during a media preview in Zurich May 2, 2012. The pearl and diamond diadem created in 1920 by Joseph Chaumet, which has an An employee of Sotheby's auctioneers displays the Murat Tiara during a media preview in Zurich May 2, 2012. The pearl and diamond diadem created in 1920 by Joseph Chaumet, which has an](https://c8.alamy.com/comp/2CMEYBM/an-employee-of-sothebys-auctioneers-displays-the-murat-tiara-during-a-media-preview-in-zurich-may-2-2012-the-pearl-and-diamond-diadem-created-in-1920-by-joseph-chaumet-which-has-an-estimate-of-15-25-million-boasts-one-of-the-largest-natural-pearls-ever-recorded-at-30337-grains-and-will-be-offered-in-a-sothebys-auction-of-jewels-in-geneva-on-may-15-reutersarnd-wiegmann-switzerland-tags-society-business-2CMEYBM.jpg)
An employee of Sotheby's auctioneers displays the Murat Tiara during a media preview in Zurich May 2, 2012. The pearl and diamond diadem created in 1920 by Joseph Chaumet, which has an
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